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Finding the Fourth Proportional to 423.77, 584.25 and 344.79

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Solution

The fourth proportional to 423.77, 584.25 and 344.79 is: 475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.77 : 584.25 = 344.79 : x
  2. Step 2: Convert to fraction form
    423.77/584.25 = 344.79/x
  3. Step 3: Cross multiply
    423.77x = 584.25 × 344.79
  4. Step 4: Simplify right side
    423.77x = 201,443.56
  5. Step 5: Solve for x
    x = 201,443.56/423.77
  6. Step 6: Final answer
    x = 475.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.